DE3838188A1 - Reinigung polymerbehafteter teile - Google Patents
Reinigung polymerbehafteter teileInfo
- Publication number
- DE3838188A1 DE3838188A1 DE3838188A DE3838188A DE3838188A1 DE 3838188 A1 DE3838188 A1 DE 3838188A1 DE 3838188 A DE3838188 A DE 3838188A DE 3838188 A DE3838188 A DE 3838188A DE 3838188 A1 DE3838188 A1 DE 3838188A1
- Authority
- DE
- Germany
- Prior art keywords
- treatment
- hydrolysis
- pyrolysis
- parts
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims description 5
- 239000000463 material Substances 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 33
- 230000007062 hydrolysis Effects 0.000 claims description 23
- 238000006460 hydrolysis reaction Methods 0.000 claims description 23
- 238000000197 pyrolysis Methods 0.000 claims description 23
- 239000004033 plastic Substances 0.000 claims description 17
- 229920003023 plastic Polymers 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 13
- 230000034659 glycolysis Effects 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 9
- 230000009969 flowable effect Effects 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 229920002521 macromolecule Polymers 0.000 claims description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 4
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 4
- 239000000908 ammonium hydroxide Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000000593 degrading effect Effects 0.000 claims description 2
- 150000003254 radicals Chemical class 0.000 claims 1
- 239000003870 refractory metal Substances 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 8
- 238000000354 decomposition reaction Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910017604 nitric acid Inorganic materials 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 150000002334 glycols Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 235000012571 Ficus glomerata Nutrition 0.000 description 1
- 240000000365 Ficus racemosa Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229920001007 Nylon 4 Polymers 0.000 description 1
- 229920008285 Poly(ether ketone) PEK Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 235000015125 Sterculia urens Nutrition 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/07—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of solid raw materials consisting of synthetic polymeric materials, e.g. tyres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
- B08B7/0071—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by heating
- B08B7/0085—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by heating by pyrolysis
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/008—Processes of polymerisation cleaning reaction vessels using chemicals
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2220/00—Type of materials or objects being removed
- B08B2220/04—Polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2230/00—Other cleaning aspects applicable to all B08B range
- B08B2230/01—Cleaning with steam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/27—Cleaning; Purging; Avoiding contamination
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3838188A DE3838188A1 (de) | 1988-11-10 | 1988-11-10 | Reinigung polymerbehafteter teile |
| EP89120879A EP0369351B1 (de) | 1988-11-10 | 1989-11-10 | Reinigung polymerbehafteter Teile |
| DE58908317T DE58908317D1 (de) | 1988-11-10 | 1989-11-10 | Reinigung polymerbehafteter Teile. |
| US07/434,936 US5064487A (en) | 1988-11-10 | 1989-11-13 | Method of cleaning of components to which polymers are bonded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3838188A DE3838188A1 (de) | 1988-11-10 | 1988-11-10 | Reinigung polymerbehafteter teile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3838188A1 true DE3838188A1 (de) | 1990-05-17 |
| DE3838188C2 DE3838188C2 (enrdf_load_stackoverflow) | 1992-07-09 |
Family
ID=6366912
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3838188A Granted DE3838188A1 (de) | 1988-11-10 | 1988-11-10 | Reinigung polymerbehafteter teile |
| DE58908317T Expired - Fee Related DE58908317D1 (de) | 1988-11-10 | 1989-11-10 | Reinigung polymerbehafteter Teile. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE58908317T Expired - Fee Related DE58908317D1 (de) | 1988-11-10 | 1989-11-10 | Reinigung polymerbehafteter Teile. |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5064487A (enrdf_load_stackoverflow) |
| EP (1) | EP0369351B1 (enrdf_load_stackoverflow) |
| DE (2) | DE3838188A1 (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4410672A1 (de) * | 1994-03-26 | 1995-09-28 | Christian O Schoen | Verfahren und Vorrichtung zur Wiederverwertung von Kunststoff |
| WO1996028291A1 (fr) * | 1995-03-16 | 1996-09-19 | Alexandr Vasilievich Ryazanov | Procede de recyclage d'articles en caoutchouc industriel |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1251854B (it) * | 1991-09-24 | 1995-05-26 | Movengineering S R L | Procedimento per la pulizia di elementi di macchine sporchi di polimeri ed impianto per la sua esecuzione |
| BE1007224A3 (nl) * | 1993-06-16 | 1995-04-25 | Dinamec Nv | Werkwijze en inrichting voor het thermisch reinigen van voorwerpen. |
| DE4418562A1 (de) * | 1993-06-29 | 1995-01-12 | Leybold Durferrit Gmbh | Verfahren und Vorrichtung zur Behandlung von im wesentlichen aus Kunststoff oder Gummi bestehendem Gut |
| GB2280451B (en) * | 1993-06-29 | 1998-01-28 | Leybold Durferrit Gmbh | Process for embrittling and crushing of plastics/rubber |
| US5580394A (en) * | 1993-07-12 | 1996-12-03 | Airtronic, Inc. | Method for cleaning industrial parts including sequential direct spray and immersion of the part |
| DE4411677C1 (de) * | 1994-04-05 | 1995-10-26 | Mtu Muenchen Gmbh | Verfahren zum Entfernen organischer Materialien von Triebwerkskomponenten |
| US5617800A (en) * | 1995-02-24 | 1997-04-08 | Grass America, Inc. | System for cleaning fixtures utilized in spray painting |
| US5849094A (en) * | 1995-04-10 | 1998-12-15 | Movengineering S.R.L. | Process for cleaning metal machine parts caked with thermoplastic polymer |
| IT1282718B1 (it) * | 1996-02-29 | 1998-03-31 | Movengineering S R L | Procedimento ed apparecchiatura per la pulizia in situ,senza rimozione degli elementi filtranti,di filtri sporchi di polimeri |
| DE19746688A1 (de) * | 1997-10-22 | 1999-04-29 | Basf Ag | Verfahren zur Reinigung von Anlagenteilen |
| DE10007313C2 (de) * | 2000-02-17 | 2002-09-05 | Schwing Fluid Technik Ag | Verfahren zur Reinigung von durch Polymerablagerungen verschmutzten Apparate- und Maschinenteilen |
| GB0312281D0 (en) * | 2003-05-29 | 2003-07-02 | Longworth Engineering Ltd | Cleaning filter elements |
| US8501675B2 (en) * | 2006-06-06 | 2013-08-06 | Exxonmobil Research And Engineering Company | High viscosity novel base stock lubricant viscosity blends |
| WO2009023559A2 (en) | 2007-08-10 | 2009-02-19 | Warren Vanderpool | Waste processing process |
| AU2015215023B2 (en) | 2014-02-04 | 2018-11-01 | Chemetall Gmbh | Method for removing organic coatings from substrates coated with organic coatings |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2804616A1 (de) * | 1977-06-06 | 1978-12-07 | Beringer Co Inc | Verfahren und vorrichtung zum pyrolytischen abbauen eines organischen materials |
| DE3422924A1 (de) * | 1984-06-20 | 1985-12-19 | Fuchs, Gerhard, 7640 Kehl | Verfahren und vorrichtung zum entfernen von gummi und/oder kunststoff aus verbundkoerpern aus metall und wenigstens einem dieser materialien |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB822834A (en) * | 1957-01-11 | 1959-11-04 | Jaroslav Pitat | A method of processing waste of polyethylene terephthalate by hydrolysis |
| US2907687A (en) * | 1958-02-21 | 1959-10-06 | Dow Chemical Co | Cleaning spinnerettes |
| US2917418A (en) * | 1958-03-13 | 1959-12-15 | Eastman Kodak Co | Thermolytic process for cleaning apparatus used in processing polyethylene terephthalate |
| DE1250592B (de) * | 1962-02-16 | 1967-09-21 | N V Onderzoekingsmstitut Research, Arnheim (Niederlande) | Verfahren zum Reinigen von Spinndüsen |
| US3485670A (en) * | 1966-07-28 | 1969-12-23 | Eastman Kodak Co | Processes for cleaning apparatus used in processing poly(ethylene-terephthalate) |
| US3523827A (en) * | 1968-05-06 | 1970-08-11 | Monsanto Co | Spinneret reconditioning |
| DE2114969B2 (de) * | 1970-09-16 | 1973-12-06 | Veb Chemiefaserkombinat Schwarza Wilhelm Pieck, X 6822 Rudolfstadt-Schwarza | Verfahren zum Reinigen von mit Polyesterschmelze verunreinigten Vorrichtungen und Apparaturen |
| US3928653A (en) * | 1975-02-05 | 1975-12-23 | Tee Pak Inc | Collagen slurry containing partial fatty acid esters of glycerin |
| US4078143A (en) * | 1976-01-09 | 1978-03-07 | E. I. Du Pont De Nemours And Company | Process for depolymerizing waste ethylene terephthalate polyester |
| CH635250A5 (de) * | 1977-08-12 | 1983-03-31 | Schweizerische Viscose | Verfahren und vorrichtung zur entfernung von rueckstaenden auf geraeten durch pyrolyse. |
| US4220480A (en) * | 1978-09-18 | 1980-09-02 | Beringer Co., Inc. | Process for vacuum pyrolysis removal of polymers from various objects |
| US4424080A (en) * | 1982-04-13 | 1984-01-03 | Beringer Co., Inc. | Process for hydrolysis removal of condensation polymer from various objects |
| DE3434985A1 (de) * | 1984-09-24 | 1986-04-03 | Henkel KGaA, 4000 Düsseldorf | Abbeizschaum |
-
1988
- 1988-11-10 DE DE3838188A patent/DE3838188A1/de active Granted
-
1989
- 1989-11-10 EP EP89120879A patent/EP0369351B1/de not_active Expired - Lifetime
- 1989-11-10 DE DE58908317T patent/DE58908317D1/de not_active Expired - Fee Related
- 1989-11-13 US US07/434,936 patent/US5064487A/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2804616A1 (de) * | 1977-06-06 | 1978-12-07 | Beringer Co Inc | Verfahren und vorrichtung zum pyrolytischen abbauen eines organischen materials |
| DE3422924A1 (de) * | 1984-06-20 | 1985-12-19 | Fuchs, Gerhard, 7640 Kehl | Verfahren und vorrichtung zum entfernen von gummi und/oder kunststoff aus verbundkoerpern aus metall und wenigstens einem dieser materialien |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4410672A1 (de) * | 1994-03-26 | 1995-09-28 | Christian O Schoen | Verfahren und Vorrichtung zur Wiederverwertung von Kunststoff |
| WO1996028291A1 (fr) * | 1995-03-16 | 1996-09-19 | Alexandr Vasilievich Ryazanov | Procede de recyclage d'articles en caoutchouc industriel |
Also Published As
| Publication number | Publication date |
|---|---|
| DE58908317D1 (de) | 1994-10-13 |
| US5064487A (en) | 1991-11-12 |
| DE3838188C2 (enrdf_load_stackoverflow) | 1992-07-09 |
| EP0369351A3 (en) | 1990-09-19 |
| EP0369351B1 (de) | 1994-09-07 |
| EP0369351A2 (de) | 1990-05-23 |
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